#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}

        /* 加载动画
    .loader2 {
      width: 400px;
      height: 40px;
      background-color: #ddd;
      top: 50%;
      left: 50%;
      margin: -40px -200px;
      position: absolute;
      // border-radius: 100px;
      box-shadow: inset 0 0 0 2px rgba(0, 0, 0, .05);

      &:after {
        // border-radius: 100px;
        content: '';
        position: absolute;
        background-color: #fff;
        left: 2px;
        top: 2px;
        bottom: 2px;
        right: 360px;
        animation-name: slide;
        animation-duration: 2s;
        animation-easing-function: linear;
        animation-iteration-count: infinite;
        box-shadow: 0 1px 2px rgba(0, 0, 0, .2);
      }

      @keyframes slide {
        0% {
          right: 360px;
          left: 2px;
        }

        5% {
          left: 2px
        }

        50% {
          right: 2px;
          left: 360px;
        }

        55% {
          right: 2px;
        }

        100% {
          right: 360px;
          left: 2px;
        }
      }
    } */
